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Finding the Fourth Proportional to 227,170.80, 313,440.65 and 129,032.21

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Solution

The fourth proportional to 227,170.80, 313,440.65 and 129,032.21 is: 178,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,170.80 : 313,440.65 = 129,032.21 : x
  2. Step 2: Convert to fraction form
    227,170.80/313,440.65 = 129,032.21/x
  3. Step 3: Cross multiply
    227,170.80x = 313,440.65 × 129,032.21
  4. Step 4: Simplify right side
    227,170.80x = 40,443,938,344.57
  5. Step 5: Solve for x
    x = 40,443,938,344.57/227,170.80
  6. Step 6: Final answer
    x = 178,033.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.